/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.geoeditorcon;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * @author Dezmond
 */
public class GeoEditorListener extends Thread {
	private static GeoEditorListener _instance;
	private static final int PORT = 9011;
	private static Logger _log = Logger.getLogger(GeoEditorListener.class
			.getName());
	private ServerSocket _serverSocket;
	private static GeoEditorThread _geoEditor;

	public static GeoEditorListener getInstance() {
		if (_instance == null)
			try {
				_instance = new GeoEditorListener();
				_instance.start();
				_log.info("GeoEditorListener Initialized.");
			} catch (IOException e) {
				_log.severe("Error creating geoeditor listener! "
						+ e.getMessage());
				System.exit(1);
			}
		return _instance;
	}

	private GeoEditorListener() throws IOException {
		_serverSocket = new ServerSocket(PORT);
	}

	public GeoEditorThread getThread() {
		return _geoEditor;
	}

	public String getStatus() {
		if (_geoEditor != null && _geoEditor.isWorking())
			return "Geoeditor connected.";
		return "Geoeditor not connected.";
	}

	@Override
	public void run() {
		Socket connection = null;
		try {
			while (true) {
				connection = _serverSocket.accept();
				if (_geoEditor != null && _geoEditor.isWorking()) {
					_log.warning("Geoeditor already connected!");
					connection.close();
					continue;
				}
				_log.info("Received geoeditor connection from: "
						+ connection.getInetAddress().getHostAddress());
				_geoEditor = new GeoEditorThread(connection);
				_geoEditor.start();
			}
		} catch (Exception e) {
			_log.info("GeoEditorListener: " + e.getMessage());
			try {
				connection.close();
			} catch (Exception e2) {
			}
		} finally {
			try {
				_serverSocket.close();
			} catch (IOException io) {
				_log.log(Level.INFO, "", io);
			}
			_log.warning("GeoEditorListener Closed!");
		}
	}
}
